How to do it determine cuts.
How to lay a roof valley.
To shingle out of the valley with laminated shingles lay a shingle down as a gauge and mark the corner at the bottom left and top right of the roof.
Place a piece of sheet metal under the shingles to make sure you will not damage the flashing.
Only nail at the edges with only enough nails to.
Snipping off the corners of.
Ensure ice and water protector has been installed along the valley first.
Soup to nuts riley shows the proper way of installing a valley on a roof.
I then move the shingle to the uppermost course on the roof plane line up the mark on the shingle with the valley center and again mark the corner.
The top joinery of both valleys when they meet on the same plane of roof is shown here.
Some roofers cut the shingles parallel to the flashing s center ridge.
I have my valley custom made with water trough to help with leaking b.
To secure the roof valley flashing nail it down carefully.